graphite electrodes ua haujlwm li cas?

Cia peb tham txog Yuav ua li cas graphite electrodes ua haujlwm?graphite electrode manufacturing txheej txheem thiab Vim li cas graphite electrodes yuav tsum tau hloov?
1. graphite electrodes ua haujlwm li cas?
Cov electrodes yog ib feem ntawm lub qhov cub lub hau thiab tau sib sau ua ke rau hauv kab.Cov hluav taws xob ces dhau los ntawm cov electrodes, tsim ib qho arc ntawm cov cua kub hnyav uas melts cov seem hlau.
Cov electrodes yog txav mus rau hauv cov seem hauv lub sijhawm meltdown.Tom qab ntawd lub arc yog tsim los ntawm cov electrode thiab hlau.Los ntawm kev txiav txim siab txog kev tiv thaiv, tsis tshua muaj hluav taws xob raug xaiv rau qhov no.Tom qab lub arc yog shielded los ntawm electrodes, lub voltage yog nce rau speeding lub melting txheej txheem.
2. graphite electrode manufacturing txheej txheem
Cov graphite electrode feem ntau yog ua los ntawm cov roj av coke thiab rab koob coke, thiab cov thee bitumen yog siv los ua cov ntawv khi.Nws yog tsim los ntawm calcination, compounding, kneading, pressing, roasting, graphitization thiab machining.Nws yog tso tawm hluav taws xob nyob rau hauv daim ntawv ntawm hluav taws xob arc nyob rau hauv hluav taws xob arc rauv.Tus neeg xyuas pib uas heats thiab melts tus nqi tuaj yeem muab faib ua lub zog graphite electrode, lub zog siab graphite electrode thiab lub zog ultra siab graphite electrode raws li nws qhov ntsuas zoo.

3. Vim li cas graphite electrodes yuav tsum tau hloov?
Raws li txoj cai noj, muaj ntau qhov laj thawj ntawm kev hloov graphite electrodes.
• Kev siv kawg: Cov no suav nrog sublimation ntawm cov khoom siv graphite uas tshwm sim los ntawm qhov kub thiab txias ntawm arc thiab poob ntawm cov tshuaj tiv thaiv ntawm cov electrode thiab cov hlau molten thiab slag.Kub kub sublimation tus nqi kawg yog nyob ntawm qhov ceev tam sim no mus los ntawm electrode;kuj muaj feem xyuam nrog txoj kab uas hla ntawm electrode sab tom qab oxidation;Kev noj kawg kuj tseem cuam tshuam txog seb puas yuav ntxig cov electrode rau hauv cov dej steel kom nce carbon.
• Lateral oxidation: Cov tshuaj muaj pes tsawg leeg ntawm cov electrode yog carbon, Carbon yuav oxidize nrog huab cua, dej vapor thiab carbon dioxide nyob rau hauv tej yam kev mob, thiab oxidation tus nqi ntawm electrode sab yog muaj feem xyuam rau chav tsev oxidation tus nqi thiab raug cheeb tsam.Normally, Electrode sab oxidation suav txog li 50% ntawm tag nrho cov electrode noj.Nyob rau hauv xyoo tas los no, txhawm rau txhim kho cov smelting ceev ntawm hluav taws xob rauv, qhov zaus ntawm cov pa tshuab ua haujlwm yog nce, oxidation poob ntawm electrode yog nce.
• Kev poob qis: Thaum cov khoom siv hluav taws xob tau siv tas li ntawm qhov sib txuas ntawm cov hluav taws xob sab sauv thiab sab qis, ib feem me me ntawm cov electrode los yog sib koom ua ke yog detached vim oxidative thinning ntawm lub cev los yog nkag mus rau cov kab nrib pleb.
• Nto tev thiab xau: Qhov tshwm sim ntawm qhov tsis zoo thermal shock tsis kam ntawm cov electrode nws tus kheej thaum lub sij hawm smelting.Include electrode lub cev tawg thiab txiv mis tawg.Electrode tawg yog muaj feem xyuam rau qhov zoo thiab machining ntawm graphite electrode thiab lub txiv mis, kuj muaj feem xyuam rau kev lag luam ntawm steel ua.